Can Swim Cannot Swim Totals
7th Graders 15 60
8th Graders 45
Totals 65 40 105
The table shows data for seventh and eighth graders who can and cannot swim. How would you construct the missing parts of the two-way table?
To construct the missing parts of the two-way table, we can use the information provided in the table. We know that there are a total of 105 students, 65 of which can swim and 40 cannot swim.
From this information, we can determine the number of seventh graders who can swim by subtracting the number of eighth graders who can swim from the total number of students who can swim: 65 - 45 = 20 seventh graders who can swim.
To find the number of seventh graders who cannot swim, we subtract the number of seventh graders who can swim from the total number of seventh graders: 60 - 15 = 45 seventh graders who cannot swim.
Now we can fill in the missing parts of the two-way table:
```
Can Swim Cannot Swim Totals
7th Graders 20 45 65
8th Graders 45 15 60
Totals 65 60 105
```